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Note 4 - Inventories (Tables)
12 Months Ended
Dec. 31, 2013
Inventory Disclosure [Abstract]  
Schedule of Inventory, Current [Table Text Block]
   

December 31,

 
   

2013

   

2012

 

Raw materials

  $ 1,611     $ 1,649  

Finished goods

    899       932  

Inventories, net

  $ 2,510     $ 2,581